A client was using the headphone jack on front of CD Rom to plug his speakers into so he can listen to CD’s on his old AST 486dx computer. The computer does not have a sound card or on-board sound chips. The computer was having cache memory problems which i replaced the cache chips and the computer is now running fine. Can speakers, even if they are powered by their own source,(not drawing power from the motherboard) blow the cache or motherboard?